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barb727

03:50PM | 10/17/05
Member Since: 10/16/05
2 lifetime posts
Bvbasement
Hi...i have a question about what options we have for our basement and what would be the best set up for our situation. We have a sump with 2 pumps right now, one is 1/3 hp , the other is 1/2 hp. This usually serves us well, but we just had 9 straight days of rain, and ended up with 3 inches of water before the fire dept. pumped it out. We would like to finish our basement, so we need to figure out what we need. We plan on buying a 3/4hp pump, and we need a battery back up pump. What would be the best way to set this up? Most of the year the 1/2hp pump does fine on its own, but there are times (like now) and when the snow is melting and it rains that we need the extra power. Any advice would be appreciated..thanks!!

cellarwater

04:41PM | 10/17/05
Member Since: 12/09/03
175 lifetime posts
You have a VERY difficult water situation! My reccomendation.....Sell and move to higher ground. I would not even consider finishing a basement that wet. There is not a battery back-up made with that high capacity. Usually thery're in the 25 gpm range. The sump pumps go with 2 inch 1/2 hp sewage ejectors they'll move 100 gpm or so at 5 foot lift. the average sump pump will move 40 gpm for 1/3 hp 50 gpm for 1/2 hp. pump the water outside and sloping away from the building. Check out the Little Giant line of pumps. C.

barb727

05:57PM | 10/17/05
Member Since: 10/16/05
2 lifetime posts
WOW! Thanks for the reply, but now i'm kind of depressed..LOL. Anyway..what if we put a 3/4hp pump, then a 1/2 as a secondary, then had a generator type set up just for the pumps? Might this contain the mighty Niagra in my basement? (would love to move to higher ground, but homes in this area are priced so absolutely ridiculously high that it is not an option at this time!)

cellarwater

01:59AM | 10/18/05
Member Since: 12/09/03
175 lifetime posts
Check the gpm (gallons per minute) output that pump is good for. Using horsepower can be misleading. Make sure that the generator can handle the total wattage that pumps will draw. C.

ripthesix

04:42PM | 11/25/05
Member Since: 11/19/05
9 lifetime posts
HI i know its a old post but i would like to help you anyway. It is very important do install a check valve in each dishcarge pipe. This prevents water from comming back down the pipe.

Troy.

cellarwater

04:54AM | 12/07/05
Member Since: 12/09/03
175 lifetime posts
Rip, I DO NOT swear by check valves!!!!! Iv'e been in this for 27 years. The number one thing that must be remembered is that water freezes at 32 degrees or below. I live in Mass. and it is the number 1 cause for a flooded basement because the held up water in the discharge line FROZE! The amount of flowback from a 15 foot pipe is about a gallon. A sump holds 20. The check is not worth it. C.

MistressEll

09:01AM | 12/08/05
Member Since: 01/30/05
361 lifetime posts
above the height of the sump pit and of course you want the sump discharge pipe to crown ABOVE its connection to point of exit, discharge from ABOVE the exit pipe from the structure and have proper pitch to assure GRAVITY flow from that point. Cellar's comment was absolutely silly.

obviously one does not put a check valve up near the sill! Use only sanitary fittings for the entirety of the discharge line. problems will occur if not using sanitary fittings.

obviously no concept of basic plumbing DWV 101. Your GPM and discharge lines should be properly sized for "scour".

Excuse me for sounding harsh, but when reading cellar's post I laughed so hard had coffee back up into the nose! Best joke I've read all day!

cellarwater

04:24PM | 12/09/05
Member Since: 12/09/03
175 lifetime posts
O.K. I will let the reader decide who has the post with more common sense.C.
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